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Green Fluorescent Protein (GFP)-Expressing Tumor Model Derived from a Spontaneous Osteosarcoma in a Vascular Endothelial Growth Factor (VEGF)-GFP Transgenic Mouse

机译:源自血管内皮生长因子(VEGF)-GFP转基因小鼠的自发骨肉瘤的表达绿色荧光蛋白(GFP)的肿瘤模型。

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Vascularendothelialgrowthfactor(VEGF)mediatestumorangiogenesis,growth,andmetastasis.Murinemodelsofmetastatictumorsinwhichgreenfluorescentprotein(GFP)expressionisdrivenbytheVEGFpromotercanbeimagedbothintravitallyandexternallyandthusoffermanypossibilitiesforreal-timestudiesoftumorangiogenesis,metastasis,andtreatmentinvivo.Inourdefined-floraanimalfacility,an11-month-oldfemaletransgenicmousewithaC3Hbackground(VEGFsupP/sup-GFP/C3H)developedaspontaneoustumorthatexpressedGFPunderthecontrolofVEGF.Necropsyandhistopathologicexaminationrevealedanosteosarcomawithlungmetastases.FreshtumorfragmentsweretransplantedsuccessfullyintootherVEGFsupP/sup-GFP/C3Htransgenicmice.Duringthefirstfivegenerations,thetumor#8220;takerate#8221;was100%(25of25animals),withalatentperiodof8daysandanaveragetumorvolumeof1500mmsupxmlns="http://pub2web.metastore.ingenta.coms/"3/supat36days.Transplantedtumorshavemaintainedtheiroriginalhistopathologiccharacteristicsandmetastaticbehavior.Inaddition,thetumorgrowsinwild-typeC3Hmicewithan83%takerate(10of12animals)andasmonolayercellsinvitro.GFPwasexpressedstronglyintumortissue,lungmetastaticfoci,andculturedtumorcells.Real-timegrowthoftumorsgrownindorsalskinchambersinC3HmicecouldbevisualizedusingGFPfluorescence.Inaddition,GFPfluorescenceofmetastaticlesionsinlungsofC3Hmicewasclearlyvisiblebymultiphotonlaserscanningmicroscopy.Thisinvitroandinvivotransplantableandmetastaticosteosarcoma(Os-P0107)isanattractivemodelforfurtherstudyoftumorpathophysiologyandtreatmentefficiencyaffectingVEGFexpression.
机译:Vascularendothelialgrowthfactor(VEGF)mediatestumorangiogenesis,生长,andmetastasis.Murinemodelsofmetastatictumorsinwhichgreenfluorescentprotein(GFP)expressionisdrivenbytheVEGFpromotercanbeimagedbothintravitallyandexternallyandthusoffermanypossibilitiesforreal-timestudiesoftumorangiogenesis,转移,andtreatmentinvivo.Inourdefined-floraanimalfacility,AN11个月oldfemaletransgenicmousewithaC3Hbackground(VEGF P -GFP / C3H)developedaspontaneoustumorthatexpressedGFPunderthecontrolofVEGF.Necropsyandhistopathologicexaminationrevealedanosteosarcomawithlungmetastases。将新鲜肿瘤片段成功移植到其他VEGF P -GFP / C3H转基因小鼠中。在前五代中,肿瘤#8220;吸收率#8221; 100%(25个动物中的25个),有效期为8天,平均散发率/长度为1500mm。在第36天> 3 。移植的肿瘤保持了原始的组织病理学特征和转移性的行为。此外,肿瘤的生长ILD-typeC3Hmicewithan83%takerate(10of12animals)andasmonolayercellsinvitro.GFPwasexpressedstronglyintumortissue,lungmetastaticfoci,andculturedtumorcells.Real-timegrowthoftumorsgrownindorsalskinchambersinC3HmicecouldbevisualizedusingGFPfluorescence.Inaddition,GFPfluorescenceofmetastaticlesionsinlungsofC3Hmicewasclearlyvisiblebymultiphotonlaserscanningmicroscopy.Thisinvitroandinvivotransplantableandmetastaticosteosarcoma(OS-P0107)isanattractivemodelforfurtherstudyoftumorpathophysiologyandtreatmentefficiencyaffectingVEGFexpression。

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